REVERSE OSMOSIS MEMBRANE HAVING ULTRA HYDROPHILIC LAYER AND METHOD OF MANUFACTURING THE SAME

摘要

PURPOSE: A reverse osmosis membrane including an ultra-hydrophilic layer and a manufacturing method of the same are provided to improve a contamination resistant property while maintaining the performance of water purification. CONSTITUTION: A reverse osmosis membrane includes a porous support, a polyamide active layer, and an ultra-hydrophilic layer. The polyamine active layer is formed on the porous support. The ultra-hydrophilic layer is formed on the polyamide active layer. The ultra-hydrophilic layer includes a material represented by chemical formula 1. In chemical formula 1, x is an integer from 70 to 95; and y is an integer from 5 to 30. The thickness of the ultra-hydrophilic layer is in a range of 1-10nm.